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Clinically proven to restore skin bounce in 3 days* *4 week clinical study of 26 people
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Ectoin Hydro-Barrier Serum
Ectoin Hydro-Barrier Serum
Ectoin Hydro-Barrier Serum
Key claim statistics for ectoin Hydro-Barrier serum
Model with ectoin serum on skin

Ectoin Hydro-Barrier Serum | The INKEY List

Hydrates whilst supporting and strengthening the skin’s barrier

4.5
Rated 4.5 out of 5 stars
4.5 Stars (234 Reviews)
£15.00 / 30ml
A breakthrough in barrier skincare, The INKEY List Ectoin Hydro-Barrier Serum is your winter skin savior—a dual-action serum that boosts hydration up to 10 surface layers deep whilst building a stronger, more resilient skin barrier to defend against cold weather, dry air, and seasonal stressors. Clinically proven to restore skin bounce in just 3 days and deeply hydrate + strengthen the skin’s barrier in just 15 minutes, it’s a cold-weather essential for keeping skin hydrated, soothed, and glowing all season long.

Replenishing your hydration whilst simultaneously repairing your barrier is essential for protecting against winter dryness and moisture loss. Our Ectoin Hydro-Barrier Serum has been uniquely formulated with ingredients that work synergistically to provide deep, multi-level hydration, helping to lock in moisture and shield the skin from environmental aggressors.

2% Ectoin: Known as an extreme protector, Ectoin acts as a natural hydrator and skin cell stabilizer, helping to prevent winter-induced dehydration, calm irritation, and reinforce barrier strength for skin that stays soft, smooth, and comfortable.

Multi-Molecular Hyaluronic Acid: Helps restore the protective skin barrier from the outside in, enabling it to retain moisture more effectively—even in cold, dry air.

Whether you're looking for a hydrating serum for winter-parched skin or a lightweight layer of moisture to keep skin balanced, with continued daily use, this serum visibly improves 5 signs of a compromised skin barrier: dullness, dryness, redness, flakiness, and slackness. The INKEY List’s Ectoin Serum has a lightweight texture that melts into the skin, delivering instant, non-tacky hydration—perfect for layering under your winter skincare and makeup routine.

Suitable for:

  • All skin types
  • Barrier support and protection ​

Targets:

  • Dehydrated skin
  • Compromised skin barrier
  • Dryness
  • Flakiness
  • Dullness

Proud to be:

  • Cruelty Free
  • Carbon Net-Zero
  • Clinically Tested
  • Dermatologically Tested
  • B-Corp
  • Fragrance Free
  • Silicon Free
  • Alcohol Free
  • Vegan
  • Pregnancy & Breastfeeding Safe

Awards & Features

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Delivery info

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  • £3.99 or FREE on your first order & orders over £30
  • (2-5 working days*) 

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  • (Up to 2 working days if ordered before 4pm, excluding weekends*)

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This product

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Ectoin Hydro-Barrier Serum

Ectoin Hydro-Barrier Serum

  • • For those who want healthier, stronger skin
  • Hydrates & strengthens the skin barrier in just 15 minutes*
  • • Gives visibly bouncier & smoother skin in just 7 days*
  • • Visibly improves 5 signs of a compromised skin barrier: dryness, flakiness, dullness, redness and slackness

or

Have you tried?

Hyaluronic Acid Serum - 30ml

Hyaluronic Acid Serum - 30ml

  • • For those who want to maintain healthy, hydrated skin
  • • Provides instant & lasting hydration
  • • Helps your other skincare work harder
  • • Leaves skin feeling plump & smooth

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  • Before and after comparison
    "I was actually shocked with the results myself it kept improving and I started seeing the difference after a week and it just kept getting better I can’t wait for the official launch I’m gonna buy more products from inkey I’m really impressed with the result, this product is a part of my daily morning and night skincare routine and I’m so thankful for the opportunity you guys gave me to test this out"

    Sumbal

  • Before and after comparison
4.5
Rated 4.5 out of 5 stars
Based on 234 reviews
Total 5 star reviews: 170 Total 4 star reviews: 39 Total 3 star reviews: 9 Total 2 star reviews: 8 Total 1 star reviews: 8
Reviews Summary
Customers say this serum has a silky, light texture that absorbs quickly into the skin. Many reviews mention immediate improvements in skin softness and hydration. While most find it effective for moisture retention, some note issues with pilling under makeup. Reviews are mixed on long-term hydration benefits, with frequent users praising its plumping effects while others report limited results. The serum's consistency receives widespread appreciation, though some find it needs more product than recommended for full coverage. Most users describe it as non-greasy and comfortable for daily use.
234 reviews
  • Hannah W.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Dry
    Skin Concerns Fine Lines and Wrinkles, Dryness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 minutes ago
    Amazing product

    I’ve been using hylaronic acid for a long time and fancied a change. This is the ideal serum is beginning your daily skin care routine, it feels so light weight, sinks in really quick and a little goes a long way.

  • Mary O.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Redness, Hyperpigmentation, Dryness, Texture
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Ultimate Protector - Odogwu!

    Permit me for using a Nigerian language there. It’s just how much this hydro-barrier serum makes me happy. So some years back, I used a very terrible face cream that made my face super sensitive. Like if the slightest thing touches my face, it becomes red and sometimes itches. Then someone in Instagram talked about this serum and i ordered two. I’m almost done with one bottle and my face has changed a lot. I glow better, moisture is restored, the unsolicited redness has reduced. What ever y’all put in there, don’t stop adding it. Thank you!

  • Maria P.
    Verified Buyer
    Reviewing
    Ectoin Hydro-Barrier Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Normal
    Skin Concerns Texture, Plumping, Redness, Fine Lines and Wrinkles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 days ago
    Loved it

    This serum is my first serum in my daily routine after I washed my face. Nice texture, not thick, not greasy but very moisturizing, sometimes I don't even need a face cream.